Communication method and device

Abstract

The invention discloses a communication method and device, which are used for accurately carrying out channel estimation according to a received pilot frequency when a communication signal and a sensing signal multiplex time-frequency resource to carry out hybrid transmission. The first device sends a communication signal and a sensing signal to the second device on the target transmission resource; the communication signal comprises a pilot signal and a non-pilot signal, the transmission resource occupied by the non-pilot signal and the transmission resource occupied by the sensing signal are overlapped, and the sensing signal does not occupy the transmission resource for transmitting the pilot signal. In the embodiment of the invention, the first device does not send the sensing signal on the transmission resource used for transmitting the pilot signal, so that the influence of the sensing signal on the pilot signal in the communication signal can be avoided, and the second device can accurately perform channel estimation according to the pilot signal after receiving the pilot signal which is not superposed with the sensing signal.

Description

Communication method and device Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a communication method and device. Background Art

[0002] Perception technology involves emitting electromagnetic energy into space. Objects in space reflect the electromagnetic waves after receiving the energy. Based on the reflected waves, relevant information about the object, such as its location, direction, altitude, speed, and size, can be calculated. In 5G and future communication technologies, communication devices will become an important means of acquiring perception information from the environment by sending perception signals. For example, in autonomous driving scenarios, vehicles transmit perception signals to detect the presence of obstacles in the environment ahead and to detect relevant information about the obstacles.

[0003] Because communication devices need to balance communication services with other communication devices while transmitting perception signals, they can transmit the communication and perception signals together. However, the mixed transmission of communication and perception signals using multiplexed time-frequency resources can affect the signal-to-noise ratio and demodulation of the communication signals.

[0004] How to reduce the impact of mixed transmission of communication signals and perception signals on communication performance is an urgent problem to be solved.

[0005] Summary of the Invention

[0006] The present application provides a communication method and apparatus for reducing the impact on communication performance when communication signals and perception signals are mixedly transmitted using multiplexed time-frequency resources.

[0007] In a first aspect, the present application provides a communication method, which can be applied to a first device, a functional module in the first device, a processor or chip in the first device, and the like. Taking the first device as an example, the method can include: the first device generating a communication signal and a perception signal; the first device sending the communication signal and the perception signal to a second device on target transmission resources; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal.

[0008] Through the above method, the first device does not send the perception signal on the transmission resource used to transmit the pilot signal, which can avoid the influence of the perception signal on the pilot signal in the communication signal. After the second device receives the pilot signal without the superimposed perception signal, it can accurately perform channel estimation based on the pilot signal.

[0009] In one possible design, the first device sends first indication information to the second device, where the first indication information is used to indicate transmission resources not occupied by the perception signal in the target transmission resources.

[0010] Through the above method, the first device notifies the second device of the transmission resources not occupied by the perception signal in the target transmission resources through the first indication information, and the second device can accurately receive the perception signal based on the transmission resources not occupied by the perception signal in the target transmission resources.

[0011] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal and the frequency domain resources occupied by the pilot signal.

[0012] Through the above method, the perception signal is not sent on the transmission resource block corresponding to the first time domain resources occupied by the pilot signal and the occupied frequency domain resources in the communication signal. The other transmission resource blocks in the target transmission resources except the transmission resource blocks corresponding to the first time domain resources occupied by the pilot signal and the occupied frequency domain resources can be used to send the perception signal. Therefore, under the premise of ensuring that the perception signal does not affect the pilot signal, the perception signal is sent on as many transmission resources as possible, thereby improving the perception performance of the second device.

[0013] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

[0014] By using the above method, the perception signal is not sent on all frequency domain resources of the target transmission resource within the time range corresponding to the first time domain resource, so that the transmission of the perception signal can be more conveniently controlled according to the transmission resources not occupied by the perception signal.

[0015] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the first time domain resources, and all frequency domain resources of the target transmission resources.

[0016] Through the above method, in the case where the time length corresponding to the first time domain resource occupied by the pilot signal is short, the perception signal is not sent within the time range corresponding to the first time domain resource and the second time domain resource adjacent to the first time domain resource, which can better control the time and thus more conveniently control the transmission of the perception signal.

[0017] In one possible design, the second time domain resource includes M time units, where M is greater than or equal to 1. In this way, the perception signal may not be sent in adjacent time units other than the first time domain resource occupied by the communication signal, thereby reducing the impact of the perception signal on the pilot signal.

[0018] In one possible design, the perception signal is a periodic signal; the transmission resources not occupied by the perception signal include a third time domain resource with a length of N consecutive periods of the perception signal and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

[0019] Through the above method, when the perception signal is a periodic signal, the transmission of the perception signal can be more conveniently controlled by not transmitting the perception signal in one or more signal periods.

[0020] In one possible design, the first indication information includes time domain resource information of unoccupied transmission resources; the time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

[0021] The above method provides multiple flexible ways of notifying the second device of the time domain resource information in the transmission resources not occupied by the perception signal. The second device can accurately receive the perception signal based on the transmission resources not occupied by the perception signal in the target transmission resources.

[0022] In one possible design, the first device may be a chip.

[0023] In a second aspect, the present application provides a communication method, which can be applied to a second device, a functional module in the second device, a processor or chip in the second device, etc. Taking application to the second device as an example, the method may include: the second device receiving a communication signal and a perception signal sent by the first device on a target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal; the second device performs communication processing based on the communication signal, and performs target perception based on the perception signal.

[0024] Through the above method, the first device does not send the perception signal on the transmission resource used to transmit the pilot signal, which can avoid the influence of the perception signal on the pilot signal in the communication signal. After the second device receives the pilot signal without the superimposed perception signal, it can accurately perform channel estimation based on the pilot signal.

[0025] In one possible design, the second device receives first indication information sent by the first device, where the first indication information is used to indicate transmission resources not occupied by the perception signal in the target transmission resources; the second device obtains the perception signal for target perception based on the first indication information.

[0026] Through the above method, the first device notifies the second device of the transmission resources not occupied by the perception signal in the target transmission resources through the first indication information, and the second device can accurately receive the perception signal based on the transmission resources not occupied by the perception signal in the target transmission resources.

[0027] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal and the frequency domain resources where the pilot signal is located.

[0028] Through the above method, the perception signal is not sent on the transmission resource block corresponding to the first time domain resources occupied by the pilot signal and the occupied frequency domain resources in the communication signal. The other transmission resource blocks in the target transmission resources except the transmission resource blocks corresponding to the first time domain resources occupied by the pilot signal and the occupied frequency domain resources can be used to send the perception signal. Therefore, under the premise of ensuring that the perception signal does not affect the pilot signal, the perception signal is sent on as many transmission resources as possible, thereby improving the perception performance of the second device.

[0029] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

[0030] By using the above method, the perception signal is not sent on all frequency domain resources of the target transmission resource within the time range corresponding to the first time domain resource, so that the transmission of the perception signal can be more conveniently controlled according to the transmission resources not occupied by the perception signal.

[0031] In one possible design, the transmission resources not occupied by the perception signal include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the first time domain resources, and all frequency domain resources of the target transmission resources.

[0032] Through the above method, in the case where the time length corresponding to the first time domain resource occupied by the pilot signal is short, the perception signal is not sent within the time range corresponding to the first time domain resource and the second time domain resource adjacent to the first time domain resource, which can better control the time and thus more conveniently control the transmission of the perception signal.

[0033] In one possible design, the second time domain resource includes M time units, where M is greater than or equal to 1. In this way, the perception signal may not be sent in adjacent time units other than the first time domain resource occupied by the communication signal, thereby reducing the impact of the perception signal on the pilot signal.

[0034] In one possible design, the perception signal is a periodic signal; the transmission resources not occupied by the perception signal include a third time domain resource with a length of N consecutive periods of the perception signal and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

[0035] Through the above method, when the perception signal is a periodic signal, the transmission of the perception signal can be more conveniently controlled by not transmitting the perception signal in one or more signal periods.

[0036] In one possible design, the first indication information includes time domain resource information of unoccupied transmission resources; the time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

[0037] The above method provides multiple flexible ways of notifying the second device of the time domain resource information in the transmission resources not occupied by the perception signal. The second device can accurately receive the perception signal based on the transmission resources not occupied by the perception signal in the target transmission resources.

[0038] In one possible design, the second device may be a chip.

[0039] In a third aspect, the present application provides a communication method, which can be applied to a first device, a functional module in the first device, a processor or chip in the first device, and the like. Taking the first device as an example, the method may include: the first device generating a first communication signal and a perception signal; the first device transmitting the first communication signal and the perception signal to a second device on a target transmission resource; wherein the first signal, formed by superimposing the pilot signal in the first communication signal and the perception signal, has a constant mode characteristic.

[0040] Through the above method, when the first device sends a mixed first communication signal and a perception signal to the second device on the target transmission resource, the first signal after the first communication signal and the perception signal are superimposed still has a constant mode characteristic. In this way, the second device can accurately perform channel estimation based on the pilot signal in the received first communication signal.

[0041] In one possible design, the first device adjusts the pilot signal of the second communication signal to be sent according to the perception signal to obtain the first communication signal.

[0042] Through the above method, the first device adjusts the second communication signal to be sent to the first communication signal. After the first device sends the first communication signal and the perception signal to the second device on the same resource, the pilot signal received by the second device with the perception signal superimposed still has the constant mode characteristic, and the second device can perform accurate channel estimation based on the received pilot signal.

[0043] In one possible design, the first signal is identical to the pilot signal in the second communication signal.

[0044] Through the above method, since the pilot signal of the second communication signal is a reference signal for channel estimation agreed in advance by the first device and the second device, the first signal after the first communication signal and the perception signal are superimposed is the same as the pilot signal of the second communication signal before adjustment. In this way, the second device can accurately perform channel estimation based on the predetermined pilot signal.

[0045] In one possible design, the first device sends second indication information to the second device, where the second indication information is used to indicate an adjustment method for adjusting a pilot signal of a second communication signal to be sent.

[0046] Through the above method, after receiving the second indication information, the second device can accurately perform channel estimation based on the adjustment method of the pilot signal of the second communication signal to be sent indicated by the second indication information.

[0047] In one possible design, the first device may be a chip.

[0048] In a fourth aspect, the present application provides a communication method, which can be applied to a second device, a functional module in the second device, a processor or chip in the second device, and the like. Taking the second device as an example, the method may include: the second device receiving a first communication signal and a perception signal sent by the first device on a target transmission resource; wherein the first signal obtained by superimposing the pilot signal in the first communication signal and the perception signal has a constant mode characteristic; and the second device performing communication processing based on the communication signal and performing target perception based on the perception signal.

[0049] Through the above method, when the first device sends a mixed first communication signal and a perception signal to the second device on the target transmission resource, the first signal after the first communication signal and the perception signal are superimposed still has a constant mode characteristic. In this way, the second device can accurately perform channel estimation based on the pilot signal in the received first communication signal.

[0050] In one possible design, the first communication signal is obtained by the first device adjusting the pilot signal of the second communication signal to be sent according to the perception signal.

[0051] Through the above method, the first device adjusts the second communication signal to be sent to the first communication signal. After the first device sends the first communication signal and the perception signal to the second device on the same resource, the pilot signal received by the second device with the perception signal superimposed still has the constant mode characteristic, and the second device can perform accurate channel estimation based on the received pilot signal.

[0052] In one possible design, the first signal is identical to the pilot signal in the second communication signal.

[0053] Through the above method, since the pilot signal of the second communication signal is a reference signal for channel estimation agreed in advance by the first device and the second device, the first signal after the first communication signal and the perception signal are superimposed is the same as the pilot signal of the second communication signal before adjustment. In this way, the second device can accurately perform channel estimation based on the predetermined pilot signal.

[0054] In one possible design, the second device receives second indication information sent by the first device, where the second indication information is used to indicate an adjustment method for adjusting the pilot signal of the second communication signal to be sent; the second device performs channel estimation based on the second indication information and the first signal.

[0055] Through the above method, after receiving the second indication information, the second device can accurately perform channel estimation based on the adjustment method of the pilot signal of the second communication signal to be sent indicated by the second indication information.

[0056] In one possible design, the second device may be a chip.

[0057] In a fifth aspect, the present application provides a communication device. The present application also provides a communication device, which may be a first device, a processor, a chip, or a functional module in the first device, etc. The communication device has the function of implementing the first aspect or each possible design example of the first aspect, or the communication device has the function of implementing the third aspect or each possible design example of the third aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0058] In one possible design, the structure of the communication device includes a processing unit and a transceiver unit; the processing unit is used to generate a communication signal and a perception signal; the transceiver unit is used to send the communication signal and the perception signal to the second device on a target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal. Alternatively, the processing unit is used to generate a communication signal and a perception signal; the transceiver unit is used to send a first communication signal and a perception signal to the second device on the target transmission resource; wherein the first signal formed by superimposing the pilot signal and the perception signal in the first communication signal has a constant mode characteristic.

[0059] In addition, these units can also perform the corresponding functions of the first device in each possible design example of the first aspect mentioned above, or these units can perform the corresponding functions of the first device in each possible design example of the third aspect mentioned above. Please refer to the detailed description in the method example for details, which will not be repeated here.

[0060] In a sixth aspect, the present application provides a communication device, the structure of which includes a processor, and optionally also includes a memory and / or a communication interface, the communication interface being used to send and receive information, signals, or data, and for communicating and interacting with other devices in a communication system, the processor being configured to support the communication device in performing the corresponding functions of the first device in the first aspect or each possible design example of the first aspect, or the processor being configured to support the communication device in performing the corresponding functions of the first device in the third aspect or each possible design example of the third aspect. The memory is coupled to the processor and stores computer instructions, logic circuits, or data necessary for the communication device.

[0061] In a seventh aspect, the present application further provides a communication device, which may be a second device, a processor, a chip, or a functional module in the second device, etc. The communication device has the function of implementing the second aspect or each possible design example of the second aspect, or the communication device has the function of implementing the fourth aspect or each possible design example of the fourth aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0062] In one possible design, the structure of the communication device includes a transceiver unit and a processing unit, the transceiver unit is used to receive a communication signal and a perception signal sent by the first device on the target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal; the processing unit is used to perform communication processing based on the communication signal, and perform target perception based on the perception signal. Alternatively, the transceiver unit is used to receive a first communication signal and a perception signal sent by the first device on the target transmission resource; wherein the first signal obtained by superimposing the pilot signal and the perception signal in the first communication signal has a constant mode characteristic; the processing unit is used to perform communication processing based on the communication signal, and perform target perception based on the perception signal.

[0063] In addition, these units can also perform the corresponding functions of the second device in each possible design example of the second aspect mentioned above, or these units can perform the corresponding functions of the second device in each possible design example of the fourth aspect mentioned above. Please refer to the detailed description in the method example for details, which will not be repeated here.

[0064] In an eighth aspect, the present application provides a communication device, wherein the structure of the communication device includes a processor, and optionally also includes a memory and / or a communication interface, wherein the communication interface is used to send and receive information, signals, or data, and to communicate and interact with other devices in the communication system, and the processor is configured to support the communication device to perform the corresponding functions of the second device in the above-mentioned second aspect or each possible design example of the second aspect, or the processor is configured to support the communication device to perform the corresponding functions of the second device in the above-mentioned fourth aspect or each possible design example of the fourth aspect. The memory is coupled to the processor and stores the computer instructions, logic circuits, or data necessary for the communication device.

[0065] In a ninth aspect, an embodiment of the present application provides a communication system, which may include the first device and second device mentioned above.

[0066] In the tenth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores program instructions. When the program instructions are run on a computer, the computer executes the method described in the first aspect of the embodiment of the present application and any possible design thereof, or the second aspect and any possible design thereof, or the method described in the third aspect and any possible design thereof, or the method described in the fourth aspect and any possible design thereof.

[0067] In the eleventh aspect, an embodiment of the present application provides a computer program product, including computer program code or instructions. When the computer program code or instructions are run on a computer, the method described in the first aspect or any possible design of the first aspect is executed, or the method described in the second aspect or any possible design of the second aspect is executed, or the method described in the third aspect or any possible design of the third aspect is executed, or the method described in the fourth aspect or any possible design of the fourth aspect is executed.

[0068] In the twelfth aspect, the present application also provides a chip, including a processor, which is coupled to a memory and is used to read and execute program instructions stored in the memory, so that the chip implements the method described in the above-mentioned first aspect or any possible design of the first aspect, or implements the method described in the above-mentioned second aspect or any possible design of the second aspect, or implements the method described in the above-mentioned third aspect or any possible design of the third aspect, or implements the method described in the above-mentioned fourth aspect or any possible design of the fourth aspect.

[0069] For each of the above-mentioned aspects from the fifth to the twelfth aspects and the technical effects that may be achieved by each of the aspects, please refer to the above-mentioned description of the technical effects that can be achieved by the first aspect or the various possible solutions in the first aspect, or the above-mentioned second aspect or the various possible solutions in the second aspect, or the above-mentioned third aspect or the various possible solutions in the third aspect, or the above-mentioned fourth aspect or the various possible solutions in the fourth aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] FIG1 is a schematic diagram of the architecture of a communication system applicable to an embodiment of the present application;

[0071] FIG2 is a schematic diagram of a scenario in which a terminal device and a network device communicate with each other according to an embodiment of the present application;

[0072] FIG3 is a schematic diagram of a vehicle networking scenario according to an embodiment of the present application;

[0073] FIG4 is a flow chart of a communication method according to an embodiment of the present application;

[0074] FIG5 is a schematic diagram of a transmission structure of a communication signal according to an embodiment of the present application;

[0075] FIG6 is a schematic diagram of a resource allocation method for communication signals in target transmission resources according to an embodiment of the present application;

[0076] FIG7 is a schematic diagram of sensing signals according to an embodiment of the present application;

[0077] FIG8 is a schematic diagram of a sensing signal transmitted in a target transmission resource according to an embodiment of the present application;

[0078] FIG9 is a schematic diagram of transmission resources not occupied by sensing signals according to an embodiment of the present application;

[0079] FIG10 is a schematic diagram of sensing signals according to an embodiment of the present application;

[0080] FIG11 is a schematic diagram of transmission resources not occupied by sensing signals according to an embodiment of the present application;

[0081] FIG12 is a schematic diagram of a sensing signal transmitted in a target transmission resource according to an embodiment of the present application;

[0082] FIG13 is a schematic diagram of a resource allocation method for communication signals in target transmission resources according to an embodiment of the present application;

[0083] FIG14 is a schematic diagram of sensing signals according to an embodiment of the present application;

[0084] FIG15 is a schematic diagram of transmission resources not occupied by sensing signals according to an embodiment of the present application;

[0085] FIG16 is a schematic diagram of sensing signals according to an embodiment of the present application;

[0086] FIG17 is a schematic diagram of transmission resources not occupied by sensing signals according to an embodiment of the present application;

[0087] FIG18 is a schematic diagram of a sensing signal transmitted in a target transmission resource according to an embodiment of the present application;

[0088] FIG19 is a flow chart of a communication method according to an embodiment of the present application;

[0089] FIG20 is a schematic diagram of a resource allocation method for communication signals in a target transmission resource and a perception signal transmitted in the target transmission resource according to an embodiment of the present application;

[0090] FIG21 is a schematic diagram of a resource allocation method for communication signals in a target transmission resource and a perception signal transmitted in the target transmission resource according to an embodiment of the present application;

[0091] FIG22 is a schematic diagram of a resource allocation method for communication signals in a target transmission resource and a perception signal transmitted in the target transmission resource according to an embodiment of the present application;

[0092] FIG23 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0093] FIG24 is a schematic structural diagram of another communication device according to an embodiment of the present application;

[0094] FIG25 is a structural diagram of a communication device according to an embodiment of the present application;

[0095] Figure 26 is a structural diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0096] The present application will be described in further detail below with reference to the accompanying drawings.

[0097] The embodiments of the present application provide a communication method and apparatus for reducing the impact on communication performance when communication signals and perception signals are mixed and transmitted using time-frequency resources. The method and apparatus described in this application are based on the same technical concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can refer to each other, and any repetitions will not be repeated.

[0098] In the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or order.

[0099] In the description of this application, "at least one" means one or more, and "more" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a, b, and c, where a, b, and c can be single or plural.

[0100] In order to more clearly describe the technical solutions of the embodiments of the present application, the communication method and device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0101] The technical solutions provided in this application can be applied to various communication systems, for example, 4th generation (4G) communication systems, such as long term evolution (LTE) systems, or fifth generation (5G) communication systems, such as new radio (NR) systems, or various communication systems evolved after 5G, such as sixth generation (6G) communication systems. This application can also be applied to various communication systems such as satellite communications.

[0102] FIG1 shows an architecture of a communication system to which the communication method provided in an embodiment of the present application is applicable. The architecture of the communication system may include a first device 10 and a second device 11 .

[0103] The first device 10 or the second device 11 can be any communication device with wireless transceiver function, or can be a chip set in a communication device with wireless transceiver function; the communication device includes but is not limited to a terminal device and a network device.

[0104] The network equipment includes, but is not limited to, 5G base stations (gNBs), evolved Node Bs (eNBs or eNodeBs) in LTE, home base stations (e.g., home evolved NodeBs, or home Node Bs, HNBs), baseband units (BBUs), access points (APs) in wireless fidelity (WiFi) systems, wireless relay nodes, wireless backhaul nodes, transmission and reception points (TRPs) or transmission points (TPs), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, devices that perform base station functions in drone communications, and may also include centralized units (CUs) and distributed units (DUs) in cloud radio access networks (C-RAN) systems, and non-terrestrial communication networks (NTNs). The network equipment in the NTN communication system can be deployed on a high-altitude platform or satellite. This embodiment of the present application does not specifically limit this.

[0105] The terminal device may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile terminal, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application can be a mobile phone, a smart phone, a tablet computer, a computer with wireless transceiver function, an in-vehicle communication device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a smart point of sale (POS) machine, a customer-premises equipment (CPE), a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a personal digital assistant (PDA), etc. The embodiments of the present application do not limit the application scenarios.

[0106] In an embodiment of the present application, the first device 10 sends a communication signal and a perception signal to the second device 11, where the communication signal includes a pilot signal. After receiving the communication signal and the perception signal, the second device 11 performs channel estimation based on the pilot signal included in the communication signal, processes the communication service of the first device 10 based on the received communication signal, and perceives the target based on the received perception signal.

[0107] Among them, the communication signal is a signal transmitted between the first device and the second device mainly for realizing the wireless communication function; the perception signal is a signal used to perceive the surrounding environment and its main function is to perceive the target in the environment.

[0108] The communication system of the present application can be applied to scenarios where communication is performed between a terminal device and a network device. As shown in FIG2 , the first device 10 of the embodiment of the present application can be a terminal device, and the second device 11 can be a network device. The terminal device sends a communication signal and a perception signal to the network device on the same transmission resource; after receiving the communication signal and the perception signal, the network device performs channel estimation based on the pilot signal included in the communication signal, processes the communication service of the terminal device based on the received communication signal, and perceives the target in space based on the received perception signal, so that the network device can detect relevant information of the target, such as position, direction, height, speed, volume, and other information.

[0109] The communication system of the present application can also be applied to vehicle to everything (V2X) scenarios. As shown in FIG3 , the first device 10 of the embodiment of the present application can be any vehicle 101 in the V2X, and the second device 11 can be any vehicle 102 in the V2X except vehicle 101. Vehicle 101 sends a communication signal and a perception signal to vehicle 102 on the same transmission resource; after receiving the communication signal and the perception signal, vehicle 102 performs channel estimation based on the pilot signal included in the communication signal, processes the communication service between the vehicle 101 and the vehicle based on the received communication signal, and perceives the driving environment of the vehicle based on the received perception signal.

[0110] It should be noted that the architecture of the communication system shown in Figures 1, 2, and 3 is merely an example and does not limit the composition of the architecture of the communication system to which this application is applicable. Figures 1, 2, and 3 may also include more devices, which are not shown here in this application.

[0111] Currently, the first device simultaneously transmits a communication signal and a perception signal to the second device over the same transmission resources, mixing the communication signal and the perception signal for transmission over the same transmission resources. After receiving the communication signal, the second device performs channel estimation based on the pilot signal in the communication signal. However, because the communication signal and the perception signal share time-frequency resources, the second device receives the pilot signal superimposed with the perception signal, which destroys the constant modulus property of the pilot signal. This results in significant fluctuations in the signal-to-noise ratio (SNR) when the second device performs pilot channel estimation. This is particularly true for pilot signals with smaller modulus values ​​after superposition, resulting in a low SNR under the same noise floor, impacting the accuracy of the channel estimation.

[0112] Based on this, this application proposes multiple schemes for transmitting communication signals and perception signals. When the communication signals and perception signals are multiplexed on time-frequency resources for mixed transmission, the receiving end can accurately perform channel estimation based on the received pilot signals. The following describes the various schemes for transmitting communication signals and perception signals:

[0113] Solution 1: Send the perception signal on other transmission resources besides the transmission resources occupied by the pilot signal in the communication signal.

[0114] The present application embodiment provides a communication method applicable to the communication system shown in Figure 1, Figure 2 or Figure 3. Referring to Figure 4, the specific process of the method may include:

[0115] Step 401: The first device sends a communication signal and a perception signal to the second device on a target transmission resource. Correspondingly, the second communication device receives the communication signal and the perception signal on the target transmission resource.

[0116] Among them, the communication signal includes a pilot signal and a non-pilot signal. The transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal.

[0117] In this embodiment of the present application, the communication signal transmitted by a first device to a second device includes a pilot signal and non-pilot signals other than the pilot signal. The pilot signal is a signal known to both the first and second devices. The second device estimates the channel through which the communication signal and the sensing signal are transmitted based on the received pilot signal and the pilot signal in the communication signal before transmission.

[0118] In the embodiments of the present application, the portion of a communication signal other than the pilot signal is referred to as a non-pilot signal. Non-pilot signals can be used to transmit information such as data or signaling. In the transmission structure of a communication signal shown in Figure 5 , the shaded locations are transmission resources occupied by the pilot signal, while the remaining locations are non-pilot signals. Non-pilot signals carry information such as data or signaling sent by the first device to the second device.

[0119] In an embodiment of the present application, when a first device sends a communication signal and a perception signal to a second device, the communication signal and the perception signal are simultaneously sent to the second device on target transmission resources. However, to prevent the perception signal from affecting the pilot signal in the communication signal when the communication signal and the perception signal share transmission resources, the embodiment of the present application does not transmit the perception signal on the resources occupied by the pilot signal. Before sending the communication signal and the perception signal to the second device, the first device must first determine the transmission resources occupied by the communication signal and the perception signal.

[0120] In the embodiment of the present application, the perception signal does not multiplex the transmission resources occupied by the pilot signal, and the transmission resources occupied by the perception signal partially or completely overlap with the transmission resources occupied by the non-pilot signal.

[0121] Based on the above resource allocation method, the first device can continuously transmit communication signals on the target transmission resources. For the perception signal, the first device transmits the perception signal on some or all of the target transmission resources, excluding the transmission resources occupied by the pilot signal. Therefore, embodiments of the present application can determine the transmission resources in the target transmission resources not occupied by the perception signal based on the transmission resources occupied by the pilot signal in the communication signal.

[0122] The transmission resources of the embodiment of the present application include time domain resources and frequency domain resources. The time domain resources include one or more time units, and a time unit may include one or more minimum granularities for dividing the time domain, for example, a time unit includes one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols, or a time unit includes one or more Quadrature Amplitude Modulation (QAM) symbols. The frequency domain resources include frequency domain units, and a frequency domain unit may include one or more minimum granularities for dividing the frequency domain, for example, a frequency domain unit includes one or more subcarriers.

[0123] In implementation, the embodiments of the present application provide multiple resource allocation methods for sensing signals:

[0124] Mode 1: The perception signal does not multiplex the transmission resource blocks corresponding to the first time domain resources occupied by the pilot signal in the communication signal and the frequency domain resources occupied by the pilot signal in the communication signal.

[0125] The first time domain resource occupied by the pilot signal in the communication signal includes one or more time units, and the frequency domain resource occupied by the pilot signal in the communication signal includes one or more frequency domain units.

[0126] As shown in Figure 6, the resource allocation method of the communication signal in the target transmission resource is shown. The shaded positions are the transmission resources occupied by the pilot signal in the communication signal, and the other positions are the transmission resources occupied by non-pilot signals. In the time domain, T1, T2, T3, T4, and T5 represent a time unit, and in the frequency domain, f0, f1, f2...f N-1 Represents a frequency domain unit, the first time domain resource occupied by the pilot signal in the communication signal is the time unit T2, and the frequency domain resources occupied by the pilot signal in the communication signal are f0 and f2; based on this resource allocation method, the perception signal does not occupy the transmission resources occupied by the pilot signal in the communication signal, that is, the transmission resources not occupied by the perception signal include: the transmission resource block corresponding to the time unit T2 and the frequency domain unit f0, and the transmission resource block corresponding to the time unit T2 and the frequency domain unit f2.

[0127] Assuming that the perception signal is a periodic signal as shown in FIG7 , since the transmission resources not occupied by the perception signal in the target transmission resource include: the transmission resource block corresponding to the time unit T2 and the frequency domain unit f0, and the transmission resource block corresponding to the time unit T2 and the frequency domain unit f2, the perception signal transmitted in the target transmission resource is shown in FIG8 . The perception signal is not transmitted on the transmission resource block corresponding to the time unit T2 and the frequency domain unit f0, and the transmission resource block corresponding to the time unit T2 and the frequency domain unit f2.

[0128] The resource allocation method provided in the embodiments of the present application can use the transmission resources occupied by the pilot signal in the communication signal as the transmission resources not occupied by the perception signal. During the process of sending the perception signal, it is necessary to accurately control not to send the perception signal on the transmission resources occupied by the pilot signal. This method is applicable to perception signals generated in the digital domain and can accurately control not to send the perception signal on the transmission resources occupied by the pilot signal.

[0129] Mode 2: The perception signal does not multiplex the transmission resource blocks corresponding to the first time domain resource occupied by the pilot signal in the communication signal and all frequency domain resources of the target transmission resource.

[0130] As shown in Figure 6, the resource allocation method of the communication signal in the target transmission resource is shown. The shaded positions are the transmission resources occupied by the pilot signal in the communication signal, and the other positions are the transmission resources occupied by non-pilot signals. In the time domain, T1, T2, T3, T4, and T5 represent a time unit, and in the frequency domain, f0, f1, f2...f N-1 Represents a frequency domain unit, the first time domain resource occupied by the pilot signal in the communication signal is the time unit T2, and the frequency domain resources occupied by the pilot signal in the communication signal are f0 and f2; based on this resource allocation method, the perception signal does not occupy the transmission resource block jointly determined by the first time domain resource occupied by the pilot signal in the communication signal and all frequency domain resources of the target transmission resource, that is, the transmission resources not occupied by the perception signal include: the time unit T2 and all frequency domain units f0, f1, f2...f N-1 The determined transmission resource blocks, such as the shaded positions in FIG9 , are transmission resources not occupied by the sensing signal.

[0131] Assume that the sensing signal is a periodic signal as shown in FIG7 , since the transmission resources not occupied by the sensing signal in the target transmission resources include: time unit T2 and all frequency domain units f0, f1, f2 ... f N-1 The transmission resource block is determined, and the perception signal transmitted in the target transmission resource is shown in Figure 10. In the time unit T2 and all frequency domain units f0, f1, f2...f N-1 The perception signal is not transmitted on the determined transmission resource block.

[0132] The resource allocation method provided in the embodiment of the present application can determine the transmission resources not occupied by the perception signal based on the first time domain resources occupied by the pilot signal in the communication signal and all frequency domain resources in the target transmission resources; this method can be applicable to scenarios where it is impossible to accurately control the perception signal from being transmitted on a certain frequency domain unit (for example, a perception signal generated by an analog oscillator). Within the time range corresponding to the first time domain resource, the perception signal is not sent on all frequency domain resources of the target transmission resource. Therefore, the transmission of the perception signal can be more conveniently controlled according to the transmission resources not occupied by the perception signal, while having lower requirements for signal processing and / or hardware.

[0133] Mode 3: The perception signal does not multiplex the first time domain resource occupied by the pilot signal in the communication signal, the second time domain resource adjacent to the first time domain resource, and the resource blocks corresponding to all frequency domain resources of the target transmission resource.

[0134] As shown in Figure 6, the resource allocation method of the communication signal in the target transmission resource is shown. The shaded positions are the transmission resources occupied by the pilot signal in the communication signal, and the other positions are the transmission resources occupied by non-pilot signals. In the time domain, T1, T2, T3, T4, and T5 represent a time unit, and in the frequency domain, f0, f1, f2...f N-1 Represents a frequency domain unit, the first time domain resource occupied by the pilot signal in the communication signal is time unit T2, and the frequency domain resources occupied by the pilot signal in the communication signal are f0 and f2; based on this resource allocation method, the perception signal does not occupy the first time domain resource occupied by the pilot signal in the communication signal, the second time domain resource adjacent to the first time domain resource, and the transmission resource block determined by all frequency domain resources of the target transmission resource.

[0135] The second time domain resource adjacent to the first time domain resource includes M time units, where M is greater than or equal to 1.

[0136] When the value of M is 1, the time domain resources in the transmission resources not occupied by the perception signal include the first time domain resource occupied by the pilot signal in the communication signal, the time unit before the first time domain resource, and the time unit after the first time domain resource. As shown in Figure 11, the time domain resources in the transmission resources not occupied by the perception signal include the time unit T2, time unit T1, and time unit T3 occupied by the pilot signal in the communication signal. The transmission resources not occupied by the perception signal are the time units T1, T2, T3 and all frequency domain units f0, f1, f2...f N-1 The determined transmission resource blocks, such as the shaded positions in FIG11 , are transmission resources not occupied by the sensing signal.

[0137] Assume that the sensing signal is a periodic signal as shown in FIG7 , since the transmission resources not occupied by the sensing signal in the target transmission resources include: time units T1, T2, T3 and all frequency domain units f0, f1, f2 ... f N-1 The transmission resource block is determined; the perception signal transmitted in the target transmission resource is shown in Figure 12, in the time unit T1, T2, T3 and all frequency domain units f0, f1, f2...f N-1 The perception signal is not transmitted on the determined transmission resource block.

[0138] The resource allocation method provided in the embodiment of the present application can determine the transmission resources not occupied by the perception signal based on the first time domain resource occupied by the pilot signal in the communication signal, the second time domain resource adjacent to the first time domain resource, and all frequency domain resources in the target transmission resource; in order to further reduce the impact of the perception signal on the pilot signal in the communication signal and to better control the transmission of the perception signal, the perception signal can be not transmitted within a certain period of time before and after the first time domain resource occupied by the pilot signal in the communication signal. This method can be applicable to scenarios where it is impossible to accurately control the perception signal from being transmitted on a certain frequency domain unit (for example, a perception signal generated by an analog oscillator). Within the time range corresponding to the first time domain resource and the second time domain resource adjacent to the first time domain resource, the perception signal is not sent on all frequency domain resources of the target transmission resource. Therefore, the transmission of the perception signal can be more conveniently controlled based on the transmission resources not occupied by the perception signal, while having lower requirements for signal processing and / or hardware.

[0139] Mode 4: The sensing signal does not occupy the transmission resource blocks corresponding to the third time domain resource and all frequency domain resources of the target transmission resource;

[0140] The length of the third time domain resource is N consecutive perception signal periods, N is greater than or equal to 1, and the third time domain resource includes the first time domain resource occupied by the pilot signal in the communication signal.

[0141] In this manner, the perception signal in the embodiment of the present application is a periodic signal. In order to better control the transmission of the perception signal, the perception signal may not be transmitted within one or more perception signal periods.

[0142] An optional implementation is that, when determining the third time domain resource, the period of one or more perception signals including the first time domain resource occupied by the pilot signal in the communication signal may be used as the third time domain resource.

[0143] As shown in Figure 13, the resource allocation method of the communication signal in the target transmission resource is shown. The shaded positions are the transmission resources occupied by the pilot signal in the communication signal, and the other positions are the transmission resources occupied by non-pilot signals. In the time domain, T1, T2, T3, T4, T5, T6, T7, and T8 represent a time unit, and in the frequency domain, f0, f1, f2...f N-1 Represents a frequency domain unit, the first time domain resource occupied by the pilot signal in the communication signal is time unit T4, and the frequency domain resources occupied by the pilot signal in the communication signal are f0 and f2; based on this resource allocation method, the transmission resources not occupied by the perception signal include the third time domain resources and the transmission resource block jointly determined by all frequency domain resources of the target transmission resources.

[0144] Assume that the perception signal is a periodic signal as shown in FIG14 , one period of the perception signal is two time units, the perception signal period t2 includes the first time domain resource occupied by the pilot signal in the communication signal, and the perception signal period t2 corresponds to the time unit T3 and the time unit T4. Then, the third time domain resource includes the time unit T3 and the time unit T4. The transmission resources not occupied by the perception signal are the time unit T3, the time unit T4 and all the frequency domain units f0, f1, f2…f N-1 The transmission resources jointly determined, as shown in FIG15 , are shaded locations that are transmission resources not occupied by the sensing signal.

[0145] The perception signal transmitted in the target transmission resource is shown in FIG16 . In the time unit T3, the time unit T4 and all the frequency domain units f0, f1, f2…f N-1 The perception signal is not transmitted on the jointly determined transmission resource block.

[0146] Another optional implementation is that when determining the third time domain resource, multiple consecutive perception signal periods can be used as the third time domain resource, and the multiple consecutive perception signal periods include the first time domain resource occupied by the pilot signal in the communication signal; for example, a perception signal period including the first time domain resource occupied by the pilot signal, a period before the perception signal period including the first time domain resource occupied by the pilot signal, and a period after the perception signal period including the first time domain resource occupied by the pilot signal can be used as the third time domain resource.

[0147] As shown in Figure 13, the resource allocation method of the communication signal in the target transmission resource is shown. The shaded positions are the transmission resources occupied by the pilot signal in the communication signal, and the other positions are the transmission resources occupied by non-pilot signals. In the time domain, T1, T2, T3, T4, T5, T6, T7, and T8 represent a time unit, and in the frequency domain, f0, f1, f2...f N-1represents a frequency domain unit, the first time domain resource occupied by the pilot signal in the communication signal is time unit T4, and the frequency domain resources occupied by the pilot signal in the communication signal are f0 and f2. Based on this resource allocation method, the transmission resources not occupied by the sensing signal include the third time domain resource and the transmission resource block determined by all frequency domain resources of the target transmission resource. For example, a sensing signal period including the first time domain resource occupied by the pilot signal, a period before the sensing signal period including the first time domain resource occupied by the pilot signal, and a period after the sensing signal period including the first time domain resource occupied by the pilot signal are used as the third time domain resource.

[0148] Assume that the perception signal is a periodic signal as shown in Figure 14, one period of the perception signal is two time units, the perception signal period t2 includes the first time domain resource occupied by the pilot signal in the communication signal, the perception signal period t2 corresponds to the time unit T3 and the time unit T4, the perception signal period t1 before the perception signal period t2 corresponds to the time unit T1 and the time unit T2, and the perception signal period t3 after the perception signal period t2 corresponds to the time unit T5 and the time unit T6; then it is determined that the third time domain resource includes the time units T1, T2, T3, T4, T5, and T6. The transmission resources not occupied by the perception signal include: time units T1, T2, T3, T4, T5, and T6 and all frequency domain units f0, f1, f2...f N-1 The jointly determined transmission resource blocks, as shown in FIG17 , are shaded locations that are transmission resources not occupied by the sensing signal.

[0149] The perception signal transmitted in the target transmission resource is shown in FIG18 . In the time units T1, T2, T3, T4, T5, T6 and all frequency domain units f0, f1, f2…f N-1 The perception signal is not transmitted on the jointly determined transmission resource block.

[0150] In an embodiment of the present application, after determining the transmission resource of the perception signal by adopting any of the above-mentioned multiple perception signal resource allocation methods, the perception signal is sent to the second device on the determined perception signal transmission resource, and the communication signal is sent to the second device on the target transmission resource.

[0151] Step 402: The first device sends first indication information to the second device;

[0152] The first indication information is used to indicate transmission resources not occupied by the perception signal in the target transmission resources.

[0153] In an embodiment of the present application, after determining the transmission resources for the perception signal, since the perception signal does not occupy the transmission resources occupied by the pilot signal in the target transmission resources, in order to enable the second device to accurately receive the perception signal, the first device may notify the second device of the transmission resources not occupied by the perception signal in the target transmission resources through first indication information. When receiving the perception signal, the second device receives the perception signal on resources in the target transmission resources other than the unoccupied transmission resources based on the transmission resources not occupied by the perception signal in the target transmission resources.

[0154] Since the transmission resources occupied by the pilot signal in the communication signal are less than the transmission resources occupied by the non-pilot signal, the transmission resources not occupied by the perception signal in the target transmission resources indicated by the first device to the second device are actually the transmission resources occupied by the pilot signal in the communication signal. Since the transmission resources occupied by the pilot signal are less, the method of the first device indicating the transmission resources not occupied by the perception signal in the target transmission resources to the second device can reduce signaling overhead.

[0155] Alternatively, the first device in the embodiment of the present application sends first indication information to the second device, which can also be used to indicate the transmission resources occupied by the perception signal in the target transmission resources; the second device can directly receive the perception signal based on the transmission resources occupied by the perception signal in the target transmission resources indicated in the first indication information.

[0156] In the embodiment of the present application, when the first device indicates to the second device the transmission resources not occupied by the perception signal in the target transmission resources, an optional implementation manner is to indicate all the time domain resources and frequency domain resources in the transmission resources not occupied by the perception signal to the second device;

[0157] For example, as shown in Figure 11, if the perception signal is not occupied by the transmission resources, the first device sends a first indication message to the second device, which carries the time domain resources in the unoccupied transmission resources including time units T1, T2, and T3, and the frequency domain resources in the unoccupied transmission resources including all frequency domain resources of the target transmission resources.

[0158] Based on the above-mentioned multiple resource allocation methods of perception signals, the time domain resources in the transmission resources not occupied by the perception signals may include multiple time units; when the time domain resources in the transmission resources not occupied by the perception signals include multiple time units, the first device may include time domain resource information of the unoccupied transmission resources in the first indication information sent to the second device.

[0159] In implementation, the time domain resource information carried in the first indication information may be represented in the following ways:

[0160] 1. Time domain resource information includes the start and end time points of the time domain resources in the transmission resources not occupied by the sensing signal;

[0161] For example, as shown in Figure 17, for the unoccupied transmission resources of the perception signal, the starting time point of the time domain resources in the unoccupied transmission resources is the time unit T1, and the ending time point of the time domain resources in the unoccupied transmission resources is the time unit T6; then the time domain resource information of the unoccupied transmission resources included in the first indication information sent by the first device to the second device is the starting time point time unit T1 and the ending time point time unit T6.

[0162] 2. Time domain resource information includes the length of the time domain resource in the transmission resources not occupied by the sensing signal and the starting time point of the time domain resource;

[0163] For example, as shown in Figure 17, the perception signal is not occupied by the transmission resources, the starting time point of the time domain resources in the unoccupied transmission resources is the time unit T1, and the length of the time domain resources in the unoccupied transmission resources is 6 time units; then the time domain resource information of the unoccupied transmission resources included in the first indication information sent by the first device to the second device is the starting time point time unit T1 and the length of the time domain resources in the unoccupied transmission resources is 6 time units.

[0164] 3. The time domain resource information includes the length of the time domain resources in the transmission resources not occupied by the perception signal and the end time point of the time domain resources.

[0165] For example, as shown in Figure 17, the perception signal is not occupied by the transmission resources, the end time point of the time domain resources in the unoccupied transmission resources is time unit T6, and the length of the time domain resources in the unoccupied transmission resources is 6 time units; then the time domain resource information of the unoccupied transmission resources included in the first indication information sent by the first device to the second device is the end time point time unit T6 and the length of the time domain resources in the unoccupied transmission resources is 6 time units.

[0166] In some possible implementations, the first device is a network device and the second device is a terminal device, and the first device may send the first indication information to the second device through multiple methods such as downlink control information (DCI), radio resource control (RRC) signaling, or a medium access control layer (MAC) control element (CE);

[0167] If the first device is a terminal device and the second device is a network device, the first device may send the first indication information to the second device via uplink control information (UCI) or the like;

[0168] If both the first device and the second device are terminal devices, the first device may send the first indication information to the second device via a serial communication interface (SCI) or the like.

[0169] The embodiment of the present application does not limit the order in which step 401 and step 402 are executed. After determining that the transmission resources are not occupied by the perception signal, the first device may execute step 401 first and then step 402, or execute step 402 first and then step 401, or execute step 401 and step 402 simultaneously.

[0170] Step 403: The second device performs channel estimation based on the pilot signal included in the communication signal;

[0171] The pilot signal in the communication signal is a reference signal known to the first device and the second device. The pilot signal and the transmitted valid data in the communication signal are transmitted through the channel and received by the second device; the second device can estimate the transmission channel characteristics based on the changes in the known pilot signal, thereby recovering the valid data in the communication signal transmitted by the first device.

[0172] Step 404: The second device obtains the perception signal to perform target perception according to the first indication information; and performs communication processing according to the communication signal.

[0173] It should be noted that the embodiment of the present application does not distinguish between the order of execution of step 403 and step 404, and step 403 and step 404 can also be executed in parallel.

[0174] In the embodiment of the present application, after the second device receives the first indication information, it can be informed of the transmission resources not occupied by the first device transmitting the perception signal. Then, when receiving the perception signal, the second device can obtain the perception signal on the transmission resources in the target transmission resources other than the transmission resources not occupied by the perception signal indicated by the first indication information, and perceive the target based on the obtained perception signal.

[0175] In addition, the second device obtains a communication signal on the target transmission resource, and the second device performs communication processing based on the obtained communication signal; in implementation, the communication processing performed by the second device can be a communication service between the first device and the second device; for example, when the first device is a terminal device and the second device is a network device, the communication signal can be an access request initiated by the first device, and the second device can process the access request initiated by the first device after receiving the communication signal.

[0176] Solution 2: When the communication signal and the perception signal are mixed and transmitted, the signal after the pilot signal in the communication signal and the perception signal are superimposed has a constant mode characteristic.

[0177] The present application embodiment provides a communication method applicable to the communication system shown in Figure 1, Figure 2 or Figure 3. Referring to Figure 19, the specific process of the method may include:

[0178] Step 1901: The first device generates a first communication signal and a perception signal; wherein the first signal obtained by superimposing the pilot signal in the first communication signal and the perception signal has a constant mode characteristic.

[0179] The constant mode characteristic of the first signal in the embodiment of the present application is that the modulus corresponding to the first signal is a constant value, or the modulus corresponding to the first signal is within a preset range.

[0180] An optional implementation manner is that after the first device obtains the second communication signal to be sent, the pilot signal of the second communication signal is adjusted to obtain the first communication signal;

[0181] Since the first device needs to transmit a communication signal and a perception signal to the second device on the same transmission resource, the second device receives a signal obtained by superimposing the perception signal and the communication signal. If the first device directly sends the second communication signal and the perception signal to be sent to the second device, the second device uses the signal obtained by superimposing the second communication signal and the perception signal when performing channel estimation based on the pilot signal. The pilot signal received by the second device may destroy the constant mode characteristic of the pilot signal in the second communication signal due to the superposition of the perception signal, resulting in the second device being unable to accurately perform channel estimation. However, in the embodiment of the present application, before the first device sends the second communication signal to the second device, it adjusts the second communication signal to be sent to obtain a first communication signal, and the first communication signal needs to meet the following conditions: the pilot signal in the first communication signal obtained after adjustment and the first signal obtained by superimposing the perception signal have constant mode characteristics. Therefore, based on the embodiment of the present application, the first device adjusts the second communication signal to the first communication signal before sending the second communication signal. In this way, after the first device sends the first communication signal and the perception signal to the second device on the same resource, the pilot signal superimposed on the perception signal received by the second device still has the constant mode characteristic, and the second device can perform accurate channel estimation based on the received pilot signal.

[0182] The embodiments of the present application can use a variety of different methods to adjust the second communication signal to be sent. The embodiments of the present application do not limit the adjustment method of the second communication signal. As long as the pilot signal in the first communication signal obtained after adjustment and the first signal after the superposition of the perception signal have constant mode characteristics, the adjustment method is applicable to the present application.

[0183] An optional implementation is that the first signal obtained by superimposing the pilot signal in the adjusted first communication signal and the perception signal is the same as the pilot signal in the second communication signal.

[0184] Since the pilot signal in the second communication signal is a reference signal agreed upon by the first device and the second device, the second device can accurately perform channel estimation based on the pilot signal in the second communication signal, and the pilot signal in the second communication signal also has a good constant mode characteristic; therefore, after the first device adjusts the second communication signal to be sent to obtain the first communication signal, the first device superimposes the pilot signal and the perception signal in the first communication signal during the process of sending the first communication signal and the perception signal. The pilot signal received by the second device is the first signal after the pilot signal and the perception signal in the first communication signal are superimposed. Since the first signal is the same as the pilot signal in the second communication signal, the second device can accurately perform channel estimation based on the acquired pilot signal.

[0185] For example, the second communication signal to be sent is s1, and the perception signal is s2; when the first device sends the second communication signal and the perception signal using the same transmission resource, the power coefficient allocated to the second communication signal is The power coefficient assigned to the sensing signal is After the second communication signal and the perception signal are superimposed, the signal received by the second device is

[0186] Before sending the second communication signal, the first device adjusts the second communication signal to the first communication signal s3. The first communication signal and the perception signal are sent on the same transmission resource, and the signal received by the second device

[0187] Step 1902: The first device sends a first communication signal and a perception signal to the second device on the target transmission resource;

[0188] Among them, the target transmission resources include time domain resources and frequency domain resources; the first device sends a first communication signal and a perception signal on the same time domain resources and frequency domain resources, and the transmission resources occupied by the first communication signal and the transmission resources occupied by the perception signal are the same.

[0189] Step 1903: The second device performs channel estimation based on the received pilot signal;

[0190] The manner in which the second device performs channel estimation in step 1903 of the embodiment of the present application can be referred to the introduction in step 403 above and will not be described in detail here.

[0191] Step 1904: The second device performs communication processing according to the communication signal, and performs target perception according to the perception signal.

[0192] The manner in which the second device performs communication processing and target perception can be found in the introduction to step 404 above, and will not be described in detail here.

[0193] In addition, if the pilot signal in the adjusted first communication signal in the embodiment of the present application and the first signal after the superposition of the perception signal are different from the pilot signal in the second communication signal, the first device also needs to send a second indication information to the second device, and the second indication information is used to indicate the adjustment method for adjusting the pilot signal of the second communication signal to be sent.

[0194] The second indication information may be an offset value corresponding to an initialization seed expression used to generate the pilot signal; the initialization seed used to generate the pilot signal is the initialization value of the register when generating the pilot signal, and the initialization seed expression is an expression composed of the initialization values ​​of the register when generating the pilot signal. Since the pilot signal in the second communication signal is a reference signal agreed upon by the first device and the second device, the initialization seed expression used to generate the pilot signal is also pre-agreed upon by the first device and the second device. After the first device adjusts the pilot signal, it is necessary to notify the second device of the offset value corresponding to the initialization seed expression. The second device determines the adjusted pilot signal based on the offset value corresponding to the received initialization seed expression.

[0195] Alternatively, the second indication information may also be identification information of an initialization seed expression used to generate a pilot signal; the initialization seed used to generate a pilot signal is the initialization value of a register when generating a pilot signal, and the initialization seed expression is an expression composed of the initialization values ​​of registers when generating a pilot signal. Exemplarily, the second indication information may be the serial number of the initialization seed expression used to generate a pilot signal. The first device may generate a pilot signal based on an initialization seed expression among a plurality of initialization seed expressions, each initialization seed expression corresponding to different identification information, and the initialization seed expression used to generate the pilot signal is pre-agreed with the second device; if the first device adjusts the pilot signal of the second communication signal to be transmitted, it is necessary to notify the second device of the identification information of the initialization seed expression used to generate the pilot signal after the adjustment, and the second device determines the adjusted pilot signal based on the identification information of the received initialization seed expression.

[0196] Since the pilot signal in the second communication signal is a reference signal agreed upon by the first device and the second device, if the first device adjusts the pilot signal in the second communication signal and superimposes the adjusted first communication signal and the perception signal and sends them to the second device, then the second device receives the first signal after the pilot signal of the first communication signal and the perception signal are superimposed, and the first signal is different from the pilot signal in the second communication signal. If the second device also uses the pilot signal in the second communication signal for channel estimation, it will cause inaccurate channel estimation. Therefore, in the embodiment of the present application, when the first signal after the pilot signal in the adjusted first communication signal and the perception signal are superimposed is different from the pilot signal in the second communication signal, in order to enable the second device to accurately perform channel estimation, it is necessary to notify the second device of the adjustment method of the pilot signal of the second communication signal.

[0197] In some possible implementations, in order to reduce the signaling overhead of the first device sending the second indication information to the second device, in an embodiment of the present application, the first device and the second device pre-agree on multiple ways to adjust the pilot signal in the second communication signal to be sent. After the first device adjusts the pilot signal in the second communication signal to be sent, the adjustment method adopted is notified to the second device through the second indication information. Exemplarily, the second indication information includes an index (wherein the index can be the sequence number of the initialization seed expression sequence for generating the pilot sequence, or other information pre-agreed by the first device and the second device), the index has a corresponding relationship with the adjustment method, the first device and the second device pre-store the corresponding relationship, and after the second device receives the second indication information, it determines the adjustment method according to the index and the corresponding relationship.

[0198] For example, assuming that the pilot signal in the second communication signal to be sent is A and the perception signal is B; the first device and the second device pre-agree on three different ways of adjusting the pilot signal in the second communication signal to be sent: adjustment method 1, the pilot signal in the adjusted first communication signal is C1, and the index corresponding to adjustment method 1 is 0; adjustment method 2, the pilot signal in the adjusted first communication signal is C2, and the index corresponding to adjustment method 2 is 1; method 3, the pilot signal in the adjusted first communication signal is C3, and the index corresponding to adjustment method 3 is 2. If the first device adjusts the pilot signal in the second communication signal to be sent to C1, the second indication information sent by the first device to the second device includes the index "0", and the second device determines that the pilot signal in the adjusted first communication signal is C1 based on the index "0" included in the second indication information, and the second device performs channel estimation based on the first signal after the adjusted pilot signal C1 and the perception signal B are superimposed.

[0199] In some possible implementations, if the first device is a network device and the second device is a terminal device, the first device may send the second indication information to the second device through various methods such as DCI, RRC signaling, or MAC CE; if the first device is a terminal device and the second device is a network device, the first device may send the second indication information to the second device through methods such as UCI; if the first device and the second device are both terminal devices, the first device may send the second indication information to the second device through methods such as SCI.

[0200] In embodiments of the present application, when a first device transmits a communication signal and a perception signal to a second device on a target transmission resource, the transmission of the communication signal and the perception signal between the first and second devices can be implemented based on either of the two aforementioned schemes. During implementation, the first device can also notify the second device of the transmission scheme to be adopted. If the first device transmits the communication signal and the perception signal based on Scheme 1, the first device also needs to notify the second device of the transmission resources not occupied by the perception signal.

[0201] In the embodiment of the present application, the first device can notify the second device of the adopted transmission scheme and the transmission resources not occupied by the perception signal when adopting the first transmission scheme by sending third indication information to the second device.

[0202] The first device may carry time domain resource information in the third indication information, and indicate the transmission resources not occupied by the perception signal when the first transmission scheme is adopted through the time domain resource information; wherein, the time domain resource information may include the starting time point and the ending time point of the time domain resource in the transmission resource not occupied by the perception signal, or the time domain resource information may include the starting time point and the time domain resource length of the time domain resource in the transmission resource not occupied by the perception signal, or the time domain resource information may include the ending time point and the time domain resource length of the time domain resource in the transmission resource not occupied by the perception signal.

[0203] The formats of the third indication information corresponding to different time domain resource information are introduced below.

[0204] 1. Time domain resource information includes the start and end time points of the time domain resources in the transmission resources not occupied by the sensing signal;

[0205] For example, the format of the third indication information may be as shown in Table 1:

[0206] Table 1: Format of the third indication information

[0207] Control word transmission scheme Resource occupancy TaTb word length 1bit1bit2bit2bit

[0208] The transmission scheme includes Scheme 1 and Scheme 2. If the first device uses Scheme 1 to transmit communication signals and perception signals, the value corresponding to the transmission scheme is 1. If the first device uses Scheme 2 to transmit communication signals and perception signals, the value corresponding to the transmission scheme is 0. Alternatively, the value corresponding to the transmission scheme in the third indication information may be a default state. For example, if the first device and the second device pre-agreed to use Scheme 1 or Scheme 2, the value corresponding to the transmission scheme in the third indication information may be a default state.

[0209] If the value of the transmission scheme is 1, it is necessary to further determine the value of the resource occupation mode; the resource occupation modes include: the transmission resources not occupied by the sensing signal are all transmission resources in the target transmission resources excluding the transmission resources occupied by the pilot signal (the above-mentioned resource allocation mode 1 for the sensing signal), and the transmission resources not occupied by the sensing signal are part of the transmission resources in the target transmission resources excluding the transmission resources occupied by the pilot signal (any one of the above-mentioned resource allocation mode 2 for the sensing signal, the above-mentioned resource allocation mode 3 for the sensing signal, and the above-mentioned resource allocation mode 4 for the sensing signal). If the resource occupation mode is the above-mentioned resource allocation mode 1 for the sensing signal, the corresponding value of the resource occupation mode is 0; if the resource occupation mode is any one of the above-mentioned resource allocation mode 2 for the sensing signal, the resource allocation mode 3 for the sensing signal, and the resource allocation mode 4 for the sensing signal, the corresponding value of the resource occupation mode is 1.

[0210] If the value corresponding to the resource occupancy mode is 1, it means that the first device does not send a perception signal on all frequency domain resources in the target transmission resources within a certain time length, then it is necessary to notify the second device of the time domain range in the transmission resources not occupied by the perception signal, then Ta represents the starting time point of the time domain resources in the transmission resources not occupied by the perception signal, and Tb represents the end time point of the time domain resources in the transmission resources not occupied by the perception signal.

[0211] The values ​​of Ta include 00, 01, 10, and 11. When Ta takes the value 00, it indicates that the starting time point is the start time of the first time domain resource occupied by the pilot signal (for example, if the first time domain resource occupied by the pilot signal is an OFDM symbol, then the starting time point is the OFDM symbol occupied by the pilot signal). When Ta takes the value 01, it indicates that the starting time point is the start time of the second time domain resource adjacent to the first time domain resource occupied by the pilot signal and located before the first time domain resource (for example, if the first time domain resource occupied by the pilot signal is an OFDM symbol, and the second time domain resource includes an OFDM symbol, then the starting time point is an OFDM symbol before the OFDM symbol occupied by the pilot signal). When Ta takes the value 10, it indicates that the starting time point is the start time of a perception signal period including the first time domain resource occupied by the pilot signal. When Ta takes the value 11, it indicates that the starting time point is the start time of the first P perception signal periods of the perception signal period including the first time domain resource occupied by the pilot signal, where P is greater than or equal to 1.

[0212] The values ​​of Tb include 00, 01, 10, and 11. When Tb takes the value 00, it indicates that the end time point is the end time of the first time domain resource occupied by the pilot signal (for example, if the first time domain resource occupied by the pilot signal is an OFDM symbol, then the end time point is the OFDM symbol occupied by the pilot signal). When Tb takes the value 01, it indicates that the end time point is the end time of the second time domain resource adjacent to the first time domain resource occupied by the pilot signal and located after the first time domain resource (for example, if the first time domain resource occupied by the pilot signal is an OFDM symbol, and the second time domain resource includes an OFDM symbol, then the end time point is one OFDM symbol after the OFDM symbol occupied by the pilot signal). When Tb takes the value 10, it indicates that the end time point is the end time of a perception signal period including the first time domain resource occupied by the pilot signal. When Tb takes the value 11, it indicates that the end time point is the end time of the last Q perception signal periods of the perception signal period including the first time domain resource occupied by the pilot signal, where Q is greater than or equal to 1.

[0213] Since the value of Ta carried in the third indication information represents the positional relationship between the starting time point and the first time domain resource occupied by the pilot signal, the value of Tb carried in the third indication information represents the positional relationship between the ending time point and the first time domain resource occupied by the pilot signal; in some possible implementations, the first device sends a communication signal to the second device through the target transmission resource, and the position of the pilot signal in the communication signal is known to the first device and the second device. Therefore, after receiving the third indication information, the second device can further determine the position of the time domain resources in the transmission resources not occupied by the perception signal based on Ta and Tb carried in the third indication information, and the position of the pilot signal in the communication signal.

[0214] It should be noted that, since when the above-mentioned transmission scheme 2 is adopted to transmit communication signals and perception signals (the value corresponding to the transmission scheme is 0), the perception signal can be transmitted on all resources of the target transmission resources. Therefore, the resource occupancy mode field, Ta field and Tb field in the third indication information are invalid and the value can be any value.

[0215] The format of the third indication information is introduced below in conjunction with several different types of communication signals.

[0216] In some possible implementations, when the first device of the embodiment of the present application adopts the above-mentioned transmission scheme 1 to send communication signals and perception signals, different resource occupation modes may be selected based on different communication signal types; for example, for a signal in which the pilot signals in the communication signal are concentratedly distributed in the frequency domain, the perception signal may not be sent on all frequency domain resources in the target transmission resource (i.e., any one of the above-mentioned resource allocation mode 2 for the perception signal, the above-mentioned resource allocation mode 3 for the perception signal, and the above-mentioned resource allocation mode 4 for the perception signal is adopted). For another example, for a signal in which the pilot signals in the communication signal are sparsely distributed in the frequency domain, the perception signal may not be sent on the frequency domain resources occupied by the pilot signals in the target transmission resource (i.e., the above-mentioned resource allocation mode 1 for the perception signal is adopted). For another example, for a signal in which the pilot signals in the communication signal are concentrated for a long time, the perception signal may not be sent on the first time domain resource where the pilot signal is located in the target transmission resource and the time domain resources of a certain length before and after the first time domain resource (i.e., the above-mentioned resource allocation mode 3 or resource allocation mode 4 for the perception signal is adopted).

[0217] For example, the communication signal is a demodulation reference signal (DMRS) or channel state information (CSI) signal in which the pilot signal is concentrated in the frequency domain. The resource allocation method of the communication signal in the target transmission resource is shown in Figure 20, wherein the time unit included in the time domain resource is an OFDM symbol, the frequency domain unit included in the frequency domain resource is a subcarrier, the position filled with shaded space is the transmission resource occupied by the pilot signal, and the other positions are the transmission resources occupied by non-pilot signals. The perception signal is a periodic signal, and the period of the perception signal is 2 OFDM symbols.

[0218] If the first device can adopt the resource allocation method 2 of the above-mentioned perception signal, the perception signal does not occupy the transmission resource block determined by the first time domain resource occupied by the pilot signal and all frequency domain resources of the target transmission resource. The perception signal transmitted in the target transmission resource is shown in FIG20. In the third OFDM symbol and all frequency domain units f0, f1, f2...f N-1 The perception signal is not transmitted on the determined transmission resource block.

[0219] The format of the third indication information sent by the first device to the second device may be as shown in Table 2:

[0220] Table 2: Format of the third indication information

[0221] The resource occupancy mode of the control word transmission scheme TaTb is 110000

[0222] For another example, the communication signal is a phase-tracking reference signal (PTRS) in which the pilot signal is sparsely distributed in the frequency domain. The resource allocation method of the communication signal in the target transmission resource is shown in Figure 21, where the time unit included in the time domain resource is an OFDM symbol, the frequency domain unit included in the frequency domain resource is a subcarrier, the shaded positions are the transmission resources occupied by the pilot signal, and the other positions are the transmission resources occupied by non-pilot signals.

[0223] The perception signal is a periodic signal. If the first device can adopt the above-mentioned resource allocation method 1 of the perception signal, the perception signal does not occupy the transmission resources occupied by the pilot signal. The perception signal transmitted in the target transmission resource is shown in Figure 21. The perception signal is not transmitted on the transmission resource block occupied by the pilot signal of the communication signal.

[0224] The format of the third indication information sent by the first device to the second device may be as shown in Table 3:

[0225] Table 3: Format of the third indication information

[0226] The resource occupancy mode of the control word transmission scheme TaTb is 100000

[0227] Alternatively, the first device adjusts the pilot signal in the communication signal so that the signal after the adjusted pilot signal and the perception signal are superimposed is the same as the pilot signal before the adjustment; then, the format of the third indication information sent by the first device to the second device can be as shown in Table 4:

[0228] Table 4: Format of the third indication information

[0229] The resource occupancy mode of the control word transmission scheme TaTb is 0000

[0230] It should be noted that when the values ​​of Ta and Tb are 0, the values ​​at these positions can be considered invalid. Since when the transmission scheme is 0, it indicates that the scheme of adjusting the pilot in the communication signal is adopted, the perception signal can be transmitted on all target transmission resources.

[0231] For another example, the communication signal is a synchronization signal and physical broadcast channel block (SSB) distributed over a longer period of time within a pilot signal concentration. The resource allocation method for the communication signal within the target transmission resource is shown in Figure 22, where the time unit of the time domain resource is an OFDM symbol, the frequency domain unit of the frequency domain resource is a subcarrier, the shaded locations are transmission resources occupied by pilot signals, and the remaining locations are transmission resources not occupied by pilot signals.

[0232] The perception signal is a periodic signal. If the first device can adopt the above-mentioned resource allocation method 4 of the perception signal, the perception signal does not occupy the transmission resource block jointly determined by the third time domain resources and all frequency domain resources of the target transmission resources. The third time domain resources are the second period, third period and fourth period of the perception signal. The perception signal transmitted in the target transmission resource is shown in Figure 22.

[0233] The format of the third indication information sent by the first device to the second device may be as shown in Table 5:

[0234] Table 5: Format of the third indication information

[0235] Control word transmission scheme resource occupancy mode TaTb word length 111010

[0236] Alternatively, the first device adjusts the pilot signal in the communication signal so that the signal after the adjusted pilot signal is superimposed on the perception signal is the same as the pilot signal before the adjustment; then, the format of the third indication information sent by the first device to the second device can be as shown in Table 4.

[0237] 2. Time domain resource information includes the starting time point and time domain resource length of the time domain resource in the transmission resources not occupied by the sensing signal;

[0238] For example, the format of the third indication information may be as shown in Table 6:

[0239] Table 6: Format of the third indication information

[0240] Control word transmission scheme Resource occupancy TaΔT Word length 1 bit 1 bit 2 bit 2 bit

[0241] The transmission scheme, resource occupation method, and the value and meaning of Ta can be found in the above description. ΔT represents the time domain resource length; for example, the time domain resource length can be the number of time units. The values ​​of ΔT include 00, 01, 10, and 11. ΔT takes the value of 00, indicating that the length of the time domain resources is 0, then the end time point of the time domain resources in the transmission resources not occupied by the perception signal is the end time of the first time domain resources occupied by the pilot signal; ΔT takes the value of 01, indicating that the length of the time domain resources is 1 time unit, then the end time point of the time domain resources in the transmission resources not occupied by the perception signal is the end time of one time unit after the first time domain resources occupied by the pilot signal; ΔT takes the value of 10, indicating that the length of the time domain resources is 2 time units, then the end time point of the time domain resources in the transmission resources not occupied by the perception signal is the end time of two time units after the first time domain resources occupied by the pilot signal; ΔT takes the value of 11, indicating that the length of the time domain resources is 3 time units, then the end time point of the time domain resources in the transmission resources not occupied by the perception signal is the end time of three time units after the first time domain resources occupied by the pilot signal.

[0242] 3. Time domain resource information includes the end time point and time domain resource length of the transmission resources not occupied by the sensing signal;

[0243] For example, the format of the third indication information may be as shown in Table 7:

[0244] Table 7: Format of the third indication information

[0245] Control word transmission scheme Resource occupancy method TbΔT Word length 1bit1bit2bit2bit

[0246] The transmission scheme, resource occupation method, and the value and meaning of Tb can be described above. ΔT represents the time domain resource length; for example, the time domain resource length can be the number of time units. The values ​​of ΔT include 00, 01, 10, and 11. ΔT takes the value of 00, indicating that the time domain resource length is 0, then the starting time point of the time domain resource in the transmission resource not occupied by the perception signal is the starting time of the first time domain resource occupied by the pilot signal; ΔT takes the value of 01, indicating that the time domain resource length is 1 time unit, then the starting time point of the time domain resource in the transmission resource not occupied by the perception signal is the starting time of one time unit before the first time domain resource occupied by the pilot signal; ΔT takes the value of 10, indicating that the time domain resource length is 2 time units, then the starting time point of the time domain resource in the transmission resource not occupied by the perception signal is the starting time of two time units before the first time domain resource occupied by the pilot signal; ΔT takes the value of 11, indicating that the time domain resource length is 3 time units, then the starting time point of the time domain resource in the transmission resource not occupied by the perception signal is the starting time of three time units before the first time domain resource occupied by the pilot signal.

[0247] Based on the above embodiments, the present application also provides a communication device. Referring to FIG. 23 , the communication device 2300 may include a processing unit 2301 and a transceiver unit 2302. The transceiver unit 2302 is used to enable the communication device 2300 to communicate, such as receiving information, messages, or data, or sending information, messages, or data. The processing unit 2301 is used to control and manage the actions of the communication device 2300. The processing unit 2301 may also control the steps performed by the transceiver unit 2302.

[0248] Exemplarily, the communication device 2300 may specifically be the first device, the processor of the first device, or a chip, or a chip system, or a functional module, etc. in the above embodiment.

[0249] In one embodiment, the processing unit 2301 is used to generate a communication signal and a perception signal; the transceiver unit 2302 is used to send the communication signal and the perception signal to the second device on the target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal and the transmission resources occupied by the perception signal overlap, and the perception signal does not occupy the transmission resources used to transmit the pilot signal.

[0250] In one possible design, the transceiver unit 2302 is further configured to:

[0251] First indication information is sent to the second device, where the first indication information is used to indicate transmission resources not occupied by the perception signal in the target transmission resources.

[0252] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal and the frequency domain resources occupied by the pilot signal.

[0253] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

[0254] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the time domain resources, and all frequency domain resources of the target transmission resources.

[0255] In one possible design, the second time domain resource includes M time units, where M is greater than or equal to 1.

[0256] In one possible design, the perception signal is a periodic signal; the unoccupied transmission resources include a third time domain resource with a length of N consecutive periods of the perception signal and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

[0257] In one possible design, the first indication information includes time domain resource information of unoccupied transmission resources; the time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

[0258] In another embodiment, the processing unit 2301 is used to generate a first communication signal and a perception signal; the transceiver unit 2302 is used to send the first communication signal and the perception signal to the second device on the target transmission resource; wherein the first signal after the pilot signal in the first communication signal and the perception signal are superimposed has a constant mode characteristic.

[0259] In one possible design, the processing unit 2301 is specifically used to: adjust the pilot signal of the second communication signal to be sent according to the perception signal to obtain the first communication signal.

[0260] In one possible design, the first signal is identical to the pilot signal in the second communication signal.

[0261] In one possible design, the transceiver unit 2302 is further used to: send second indication information to the second device, where the second indication information is used to indicate an adjustment method for adjusting the pilot signal of the second communication signal to be sent.

[0262] Based on the above embodiments, embodiments of the present application further provide a communication device. Referring to FIG. 24 , the communication device 2400 may include a transceiver unit 2401 and a processing unit 2402. The transceiver unit 2401 is used by the communication device 2400 to communicate, such as receiving information, messages, or data, or sending information, messages, or data. The processing unit 2402 is used to control and manage the actions of the communication device 2400. The processing unit 2402 may also control the steps performed by the transceiver unit 2401.

[0263] Exemplarily, the communication device 2400 may specifically be the second device, the processor of the second device, or a chip, or a chip system, or a functional module, etc. in the above-mentioned embodiment.

[0264] In one embodiment, the transceiver unit 2401 is used to receive a communication signal and a perception signal sent by a first device on a target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal and the transmission resources occupied by the perception signal overlap, and the perception signal does not occupy the transmission resources used to transmit the pilot signal; the processing unit 2402 is used to perform communication processing according to the communication signal, and perform target perception according to the perception signal.

[0265] In one possible design, the transceiver unit 2401 is also used to: receive first indication information sent by the first device, the first indication information is used to indicate the transmission resources not occupied by the perception signal in the target transmission resources; the processing unit 2402 is specifically used to: obtain the perception signal for target perception according to the first indication information.

[0266] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal and the frequency domain resources where the pilot signal is located.

[0267] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

[0268] In one possible design, the unoccupied transmission resources include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the first time domain resources, and all frequency domain resources of the target transmission resources.

[0269] In one possible design, the second time domain resource includes M time units, where M is greater than or equal to 1.

[0270] In one possible design, the perception signal is a periodic signal; the unoccupied transmission resources include a third time domain resource with a length of N consecutive periods of the perception signal and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

[0271] In one possible design, the first indication information includes time domain resource information of unoccupied transmission resources; the time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

[0272] In another embodiment, the transceiver unit 2401 is used to receive a first communication signal and a perception signal sent by a first device on a target transmission resource; wherein the first signal after the pilot signal in the first communication signal and the perception signal are superimposed has a constant mode characteristic; the processing unit 2402 is used to perform communication processing according to the communication signal, and to perform target perception according to the perception signal.

[0273] In one possible design, the first communication signal is obtained by the first device adjusting the pilot signal of the second communication signal to be sent according to the perception signal.

[0274] In one possible design, the first signal is identical to the pilot signal in the second communication signal.

[0275] In one possible design, the transceiver unit 2401 is also used to: receive second indication information sent by the first device, the second indication information is used to indicate an adjustment method for adjusting the pilot signal of the second communication signal to be sent; the processing unit 2402 is also used to: perform channel estimation based on the second indication information and the first signal.

[0276] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. The functional units in the embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0277] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0278] Based on the above embodiments, the embodiments of the present application further provide a communication device, as shown in Figure 25, where the communication device 2500 may include a processor 2501. The processor 2501 may be coupled to a memory. Optionally, the memory may be integrated with the processor 2501, such as the memory 25021 in Figure 25; or it may be included in the communication device 2500 and separately from the processor 2501, such as the memory 25022 in Figure 25. Optionally, the memory may also be provided outside the communication device 2500, such as the memory 25023 in Figure 25. Optionally, the processor 2501 may send and receive signals, information, messages, etc. through a communication interface 2503. Among them, the communication interface 2503 may be included inside the communication device 2500; or it may be provided outside the communication device 2500 and connected to the communication device 2500.

[0279] Specifically, the processor 2501 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. The processor 2501 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0280] In an optional embodiment, the memory is used to store programs, computer instructions, or configuration files of logic circuits. Specifically, the program may include program code, which includes computer operating instructions. The memory may include RAM, and may also include non-volatile memory (non-volatile memory), such as one or more disk storage devices. The processor 2501 executes the application program stored in the memory to implement the above functions, thereby realizing the functions of the communication device 2500.

[0281] Exemplarily, the communication device 2500 may be the first device in the above embodiment; or the second device in the above embodiment.

[0282] In one embodiment, when the communication device 2500 implements the functions of the first device in the above embodiment, the processor 2501 can implement the operations performed by the first device in the above embodiment. For specific related descriptions, please refer to the relevant descriptions in the embodiments shown in Figures 4 or 19 above, and will not be described in detail here.

[0283] In another embodiment, when the communication device 2500 implements the functions of the second device in the above embodiment, the processor 2501 may implement other operations other than the sending and receiving operations performed by the second device in the above embodiment. Specific related descriptions can be found in the relevant descriptions of the embodiments shown in Figures 4 or 19 above, and will not be described in detail here.

[0284] Referring to Figure 26 , another embodiment of the present application also provides another communication device 2600 that can be used to implement the functions of the first and second devices in the above method. This communication device 2600 can be a communication device or a chip within a communication device. The communication device can include: at least one input / output interface 2610 and a logic circuit 2620. The input / output interface 2610 can be an input / output circuit. The logic circuit 2620 can be a signal processor, a chip, or other integrated circuit capable of implementing the method of the present application.

[0285] Among them, at least one input / output interface 2610 is used for inputting or outputting information, signals, or data. For example, when the device is a first device, the input / output interface 2610 is used to output second information such as sending communication signals and perception signals. For example, when the device is a second device, the input / output interface 2610 is used to receive communication signals and perception signals.

[0286] The logic circuit 2620 is configured to execute some or all of the steps of any one of the methods provided in the embodiments of the present application. For example, when the device is a first device, it is configured to execute the steps executed by the first device in various possible implementations of the above method embodiments, such as the logic circuit 2620 being configured to determine the transmission resources occupied by the communication signal and the perception signal. When the device is a second device, it is configured to execute the steps executed by the second device in various possible implementations of the above method embodiments, such as the logic circuit 2620 being configured to perform communication processing based on the communication signal and to perform target perception based on the perception signal.

[0287] When the communication device is a chip used in a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from other modules in the terminal (such as a radio frequency module or antenna), and the information is sent to the terminal by other terminals or network devices; or the terminal chip outputs information to other modules in the terminal (such as a radio frequency module or antenna), and the information is sent to other terminals or network devices by the terminal.

[0288] When the communication device is a chip used in a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules in the network device (such as a radio frequency module or antenna), and the information is sent to the network device by a terminal or other network device; or the network device chip outputs information to other modules in the network device (such as a radio frequency module or antenna), and the information is sent to the terminal or other network device by the network device.

[0289] Based on the above embodiments, an embodiment of the present application provides a communication system, which may include the first device and the second device involved in the above embodiments.

[0290] The embodiment of the present application also provides a computer-readable storage medium, which is used to store a computer program. When the computer program is executed by a computer, the computer can implement the method provided in the embodiment shown in Figure 4 or Figure 19 above. Exemplarily, the computer-readable storage medium can be any available medium that can be accessed by a computer. Taking this as an example but not limited to: the computer-readable medium may include non-transitory computer-readable media, random-access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM or other optical disk storage, magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0291] An embodiment of the present application also provides a computer program product, which is used to store a computer program. When the computer program is executed by a computer, the computer can implement the method provided in the embodiment shown in Figure 4 or Figure 19 above.

[0292] An embodiment of the present application also provides a chip, including a processor, which is coupled to a memory and is used to call a program in the memory so that the chip implements the method provided in the embodiment shown in Figure 4 or Figure 19 above.

[0293] An embodiment of the present application also provides a chip, which is coupled to a memory and is used to implement the method provided in the embodiment shown in Figure 4 or Figure 19 above.

[0294] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0295] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each flow and / or box in the flow chart and / or block diagram, as well as the combination of the flow chart and / or box in the flow chart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flow charts and / or one or more boxes in the block diagram.

[0296] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0297] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0298] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the scope of protection of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A communication method, characterized in that: The method comprises: The first device generates a communication signal and a sensing signal; The first device sends the communication signal and the perception signal to the second device on the target transmission resource; The communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal.

2. The method according to claim 1, wherein The method further comprises: The first device sends first indication information to the second device, where the first indication information is used to indicate transmission resources not occupied by the perception signal in the target transmission resources.

3. The method according to claim 2, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal and the frequency domain resources occupied by the pilot signal.

4. The method according to claim 2, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

5. The method according to claim 2, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the first time domain resources, and all frequency domain resources of the target transmission resources.

6. The method according to claim 5, wherein The second time domain resource includes M time units, where M is greater than or equal to 1.

7. The method according to claim 2, wherein The sensing signal is a periodic signal; The unoccupied transmission resources include a third time domain resource with a length of N consecutive perception signal periods and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

8. The method according to any one of claims 5 to 7, wherein: The first indication information includes time domain resource information of the unoccupied transmission resources; The time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

9. A communication method, characterized in that: The method comprises: The second device receives a communication signal and a perception signal sent by the first device on a target transmission resource; wherein the communication signal includes a pilot signal and a non-pilot signal, the transmission resources occupied by the non-pilot signal overlap with the transmission resources occupied by the perception signal, and the perception signal does not occupy the transmission resources used to transmit the pilot signal; The second device performs communication processing according to the communication signal and performs target perception according to the perception signal.

10. The method according to claim 9, wherein The method further comprises: The second device receives first indication information sent by the first device, where the first indication information is used to indicate a transmission resource not occupied by the perception signal in the target transmission resource; The second device obtains the perception signal to perform target perception according to the first indication information.

11. The method according to claim 10, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal and the frequency domain resources where the pilot signal is located.

12. The method according to claim 10, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal and all frequency domain resources of the target transmission resources.

13. The method according to claim 10, wherein The unoccupied transmission resources include the first time domain resources occupied by the pilot signal, the second time domain resources adjacent to the first time domain resources, and all frequency domain resources of the target transmission resources.

14. The method according to claim 13, wherein The second time domain resource includes M time units, where M is greater than or equal to 1.

15. The method according to claim 10, wherein The sensing signal is a periodic signal; The unoccupied transmission resources include a third time domain resource with a length of N consecutive perception signal periods and all frequency domain resources of the target transmission resources, the third time domain resources include the first time domain resources occupied by the pilot signal, and N is greater than or equal to 1.

16. The method according to any one of claims 11 to 15, wherein: The first indication information includes time domain resource information of the unoccupied transmission resources; The time domain resource information includes the starting time point and the ending time point of the time domain resources in the unoccupied transmission resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the starting time point of the time domain resources; or, the time domain resource information includes the length of the time domain resources in the unoccupied transmission resources and the ending time point of the time domain resources.

17. A communication method, characterized in that: The method comprises: The first device generates a first communication signal and a perception signal; The first device sends the first communication signal and the perception signal on a target transmission resource; The first signal formed by superimposing the pilot signal in the first communication signal and the perception signal has a constant mode characteristic.

18. The method according to claim 17, wherein The first device generates a first communication signal, including: The first device adjusts the pilot signal of the second communication signal to be sent according to the perception signal to obtain the first communication signal.

19. The method according to claim 18, wherein The pilot signal in the first signal is the same as the pilot signal in the second communication signal.

20. The method of claim 18, wherein: The method further comprises: The first device sends second indication information to the second device, where the second indication information is used to indicate an adjustment method for adjusting a pilot signal of the second communication signal to be sent.

21. A communication method, characterized in that: The method comprises: The second device receives a first communication signal and a perception signal sent by the first device on the target transmission resource; wherein the first signal obtained by superimposing the pilot signal in the first communication signal and the perception signal has a constant mode characteristic; The second device performs communication processing according to the communication signal and performs target perception according to the perception signal.

22. The method according to claim 21, wherein The first communication signal is obtained by the first device adjusting the pilot signal of the second communication signal to be sent according to the perception signal.

23. The method according to claim 22, wherein The pilot signal in the first signal is the same as the pilot signal in the second communication signal.

24. The method of claim 22, wherein: The method further comprises: The second device receives second indication information sent by the first device, where the second indication information is used to indicate an adjustment method for adjusting a pilot signal of the second communication signal to be sent; The second device performs channel estimation according to the second indication information and the first signal.

25. A communication device, characterized in that: The apparatus comprises a module or unit for executing the method according to any one of claims 1 to 8.

26. A communication device, characterized in that: The apparatus comprises a module or unit for executing the method according to any one of claims 9 to 16.

27. A communication device, characterized in that: The apparatus comprises a module or unit for executing the method according to any one of claims 17 to 20.

28. A communication device, characterized in that: The apparatus comprises a module or unit for executing the method according to any one of claims 21 to 24.

29. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 1 to 8 by calling a computer instruction or a logic circuit in a memory, or the method comprises a processor configured to execute the method according to any one of claims 17 to 20 by calling a computer instruction or a logic circuit in a memory.

30. The device according to claim 29, wherein Also included is the memory.

31. The device according to claim 29 or 30, characterized in that It also includes a communication interface, which is used to send and receive signals.

32. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 9 to 16 by calling a computer instruction or a logic circuit in a memory, or the method comprises a processor configured to execute the method according to any one of claims 21 to 24 by calling a computer instruction or a logic circuit in a memory.

33. The device according to claim 32, wherein Also included is the memory.

34. The device according to claim 32 or 33, characterized in that It also includes a communication interface, which is used to send and receive signals.

35. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which, when called by the computer, cause the method according to any one of claims 1 to 8 to be executed, or the method according to any one of claims 9 to 16 to be executed, or the method according to any one of claims 17 to 20 to be executed, or the method according to any one of claims 21 to 24 to be executed.

36. A computer program product, characterized in that The method comprises instructions which, when executed on a computer, cause the method according to any one of claims 1 to 8 to be executed, or cause the method according to any one of claims 9 to 16 to be executed, or cause the method according to any one of claims 17 to 20 to be executed, or cause the method according to any one of claims 21 to 24 to be executed.

37. A communication system, characterized in that: Including the communication device according to any one of claims 25, 27, 29-31 and the communication device according to any one of claims 26, 28, 32-34.

Images